[ Grammar ]
We ____ a contract two years ago and it is still valid.
A. have sign
B. have signed
C. haven’t signed
D. signed
Select your answer:

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Grammar › ViewRaja ……………..(not eat) fast food because he thinks it’s too unhealthy.
A. doesn’t eat
B. isn’t eat
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All students_____complete their homework before going to class because it’s a rule.
A. ought to
B. have to
C. must
D. should
